Ventilator



FIG. 1 is a top plan view of a ventilator comprising a new, original andornamental design;

FIG. 2 is a left side elevational view of the ventilator shown in FIG.1;

FIG. 3 is a right side elevational view of the ventilator shown in FIG.1;

FIG. 4 is a front side elevational view of the ventilator shown in FIG.1;

FIG. 5 is a rear side elevational view of the ventilator shown in FIG.1;

FIG. 6 is a bottom plan view of the ventilator shown in FIG. 1;

FIG. 7 is a bottom perspective view of the ventilator shown in FIG. 1;

FIG. 8 is another bottom perspective view of the ventilator shown inFIG. 1; and,

FIG. 9 is a top perspective view of the ventilator shown in FIG. 1.

CLAIM We claim the ornamental design for a ventilator, as shown anddescribed.